There are a lot of environments that standardize mail signatures. In Exchange 2010 you can now automatically assign users a signature based on a user’s Active Directory information, thus allowing en masse standardization of signatures. To do so is pretty straight forward, first open the Exchange Management Console and browse to the Organization Configuration. Then click on Hub Transport and then on Transport Rules. Next, click New to create a new transport rule. Here you can build an organizational signature based on user’s Active Directory attributes. You can provide some text and then any of the attributes that you see fit by wrapping them in the standard double percentage signs…